babel-plugin-transform-object-hasown

[![Build Status][ci-img]][ci]

Babel plugin for transforming
Object.hasOwn.

Install

``sh
npm install babel-plugin-transform-object-hasown --save-dev
`

Usage

Use it via available [plugin activation options][babel-plugins].

For .babelrc file:

`json
{
"plugins": ["babel-plugin-transform-object-hasown"]
}
`

Then, in your code:

`js
const object = {};

if (Object.hasOwn(object, 'becky')) {
console.log('has property becky');
}
`

After transformation:

`js
var _objectHasOwn = function (object, property) {
if (typeof object === 'undefined' || object === null) {
throw new TypeError('Cannot convert undefined or null to object');
}

return Object.prototype.hasOwnProperty.call(Object(object), property);
};

const object = {};

if (_objectHasOwn(object, 'becky')) {
console.log('has property becky');
}
`

Check test fixtures (actual and
expected) for more examples.

Caveats

Will only work with code of the form Object.hasOwn or Object['hasOwn']`.

License

MIT © Ivan Nikolić

[ci]: https://travis-ci.com/niksy/babel-plugin-transform-object-hasown
[ci-img]: https://travis-ci.com/niksy/babel-plugin-transform-object-hasown.svg?branch=master
[babel-plugins]: http://babeljs.io/docs/plugins/